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  1. #1

    Default A December Witch - Reprocessed

    All,

    Never really got around to liking the image of this that I had taken last year so the past 2 months I've been reprocessing it and trying to make a silk purse out of a sows ear. I don't have a lot of experience with processing widefield data and it requires some different techniques that I am not sure that I posses. Anyway, taken from a very dark location, Tak FSQ106N + STL11K+AP900 and ACP.

    4x900s LRGB

    http://www.celestial-images.com/Imag...0s-LRGB-1.html

    Processed in CCDStack, Assembled in PhotoshopCS and it took an a lot of work to remove the last traces of Rigel - who was attempting to arc-weld the shutter of the camera and burn a hole through the chip. So a lot of gradient removal that was caused by Orion Blow Torch was required. Some sharpening, and this surprised me.... a minimum filter to suppress some of the stars. There were a bunch of them.

    Any suggestions to improve this gratefully accepted

    Regards

    Bill

  2. #2
    Join Date
    Nov 2008
    Location
    me: Albuquerque scope: Mayhill, NM
    Posts
    1,097

    Default

    Very nice indeed! I like it.
    Another siren song from Takahashi. No, no, no, then I'd never sleep.

    I noticed your notes, just below the image.
    • Water cooling?--wow, your chip must have been near -50C given the ambient temp.
    • You list the sky transparency as Fair--couldn't tell it from the image. Must have been extremely dark out there. Is this the Fort Griffin north of Abilene?
    • I guess I don't understand what 6 nm LRGB filters are. Am I missing something?
    Whatever the answers--your image is terrific.
    measuring space rock rotation rates, live from Albuquerque NM

  3. #3

    Default

    Hi Eric,

    Well, the extra hardware is a general catch all, yes I use water cooling when needed. It wasn't necessary for this image.

    There was some thin stuff that lent a bit of murkiness to the sky. It didn't have the "snap" that it sometimes will have.

    Lastly, 6nm refers to the Ha Filter <g> Sorry for the confusion, and no, it wasn't used for this image so I should probably fix that.


    Thanks for the comments. I'd like to get some more data for this and bring out the details a bit better. Always something else to try and do <lol>

    Best Regards

    Bill

  4. #4
    Join Date
    Oct 2005
    Location
    Mesa, AZ
    Posts
    33,720

    Default

    Bill, that's a super nice image!!!! Thanks for sharing!
    -- Bob

 

 

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